Periods
| Period | Time range |
|---|---|
| Data extraction period | 2020-03-05 - 2022-05-20 |
| Enrollment period | 2021-01-01 - 2021-08-31 |
| Study period | 2021-01-01 - 2022-08-31 |
Study population and enrollment
Description of the study population: table 1
| Intervention group (N=4730) |
Control group (N=4730) |
P-value | |
|---|---|---|---|
ᵃ5-year age groups | |||
| sex_cd | |||
| Mean (SD) | 1.47 (0.536) | 1.46 (0.546) | 0.246 |
| Median [Min, Max] | 1.00 [0, 2.00] | 1.00 [0, 2.00] | |
| age_cdᵃ | |||
| Mean (SD) | 11.7 (2.95) | 11.7 (2.98) | 0.771 |
| Median [Min, Max] | 12.0 [2.00, 18.0] | 12.0 [2.00, 18.0] | |
| residence_area_cd | |||
| 731 | 643 (13.6%) | 658 (13.9%) | 0.358 |
| 732 | 692 (14.6%) | 644 (13.6%) | |
| 733 | 3395 (71.8%) | 3428 (72.5%) | |
| institutionalized_bl | |||
| Yes | 128 (2.7%) | 120 (2.5%) | 0.652 |
| No | 4602 (97.3%) | 4610 (97.5%) | |
| foreign_bl | |||
| Yes | 711 (15.0%) | 708 (15.0%) | 0.954 |
| No | 4019 (85.0%) | 4022 (85.0%) | |
| pregnancy_bl | |||
| Yes | 55 (1.2%) | 44 (0.9%) | 0.312 |
| No | 4675 (98.8%) | 4686 (99.1%) | |
| essential_worker_bl | |||
| Yes | 127 (2.7%) | 129 (2.7%) | 0.949 |
| No | 4603 (97.3%) | 4601 (97.3%) | |
| comorbidities_bl | |||
| Yes | 2154 (45.5%) | 2146 (45.4%) | 0.885 |
| No | 2576 (54.5%) | 2584 (54.6%) | |
| immunestatus_bl | |||
| Yes | 1302 (27.5%) | 1305 (27.6%) | 0.963 |
| No | 3428 (72.5%) | 3425 (72.4%) | |
Tables
The individuals in the imported dataset are counted by ‘fully_vaccinated_bl’ and ‘confirmed_case_bl’.
| Not completed a primary vaccination schedule | Completed a primary vaccination schedule | Total | |
|---|---|---|---|
| No confirmed case | 639 | 6010 | 6649 |
| Confirmed case | 361 | 2990 | 3351 |
| Total | 1000 | 9000 | 10000 |
Ratio = \(\frac{(\frac{confirmed \ cases}{non-vaccinated \ individuals})} {(\frac{confirmed \ cases}{vaccinated \ individuals})}\) = 0.9202832
The individuals eligible for analysis are counted by ‘fully_vaccinated_bl’ and ‘confirmed_case_bl’.
| Not completed a primary vaccination schedule | Completed a primary vaccination schedule | Total | |
|---|---|---|---|
| No confirmed case | 620 | 5739 | 6359 |
| Confirmed case | 329 | 2639 | 2968 |
| Total | 949 | 8378 | 9327 |
Ratio = \(\frac{(\frac{confirmed \ cases}{non-vaccinated \ individuals})} {(\frac{confirmed \ cases}{vaccinated \ individuals})}\) = 0.9085929
The matched individuals are counted by ‘fully_vaccinated_bl’ and ‘confirmed_case_bl’.
| Not completed a primary vaccination schedule | Completed a primary vaccination schedule | Total | |
|---|---|---|---|
| No confirmed case | 309 | 4576 | 4885 |
| Confirmed case | 155 | 1974 | 2129 |
| Total | 464 | 6550 | 7014 |
Ratio = \(\frac{(\frac{confirmed \ cases}{non-vaccinated \ individuals})} {(\frac{confirmed \ cases}{vaccinated \ individuals})}\) = 0.9021778